Spark-arrester.



C. A. RUSH.

SPARK ARRESTER.

APPLICATION FILED DEG.1,1909` as onirica.

CHARLES A. RUSH, OF LA GRANGE, ILLINOIS.

SPARK-ARRESTER.

Specification of Letters Yateiit.

Application filed December 1, 1909. Serial'No. 530,822.

T o all whom it may concern:

Be it known that I, CHARLES A. RUSH, a citizen of the United States,residing at La Grange, county of Cook, and State of Illinois, haveinvented certain new and useful Improvements in Sparicchi-esters, ofwhich the following is a specification.

My invention relates to improvements in spark arresters and'has for itsobject the provision of a device of this character which shall beinexpensive of construction and eflicient in operation.

motor may be Iconnected ip A further object ofl my invention is toprovide a spark arrester especially adapted for use on a locomotivestack havin(r means 'incorpoiiited therein for intercepting and'collecting soot and finders.

@ther objects will appear hereinafter.

lVith these objects in View my` invention consists in the novelconstruction and arrangement of parts which will be hereinafter fullydescribed and more particularly pointed out in the appended claims.

My invention will be best understood by reference to the accompanyingdrawings forming a part of 'this specification, and in which,

Figure l is' a partial side elevation of the locomotive .stack embodyingmy invention the upper portion being shown in section, and Fig. 2 is abottom plan View of a rotatable member provided in the device.

Referring now to the drawings l indicates a portion of the front of alocomotive and 2 a locomotive stack, the lower portion of the latterbeing of the usual cylindrical form. Around the top of the stack anannular pocket 3 is formed, and extending inwardly from the exteriorwall thereof is a .flange 4 adapted to deflect matter downwardly intosaid pocket. Mounted in the top of the stack and extending radiallytherein is a power shaft .5 and connected'.

therewith is a rotary steam motor G having,r 1 pe connection to theboiler of the locomo-` t.. A steain motor is preferred as steam isavailable butany other well known'su'itable provided, the pipe 7 beingany suitable manner to the boiler of the locomotive. Arially mounted instack 2 is a shaft'S having beveled gear connection with the shaft 5,the lower portion of the shaft 8 beingr pivoted in a diainetricallydisposed member 9. Secured to the lower end of the shaft 8 is aninverted l cone shapedQ wire gauze member 10said shaft projectingthrough the apex of this member. Securedl to the exterior wall of thewire gauze member 10 are a series of propeller blades l1 which cause anupward flow of gas'througli said member and a radial flow of solidmatter such as sootJ and cinders 'which are collected in the annularpocket 3, the gas of said member tending' also to deflect said solidmatter radially. Cold air openings 12 are formed in the wall of thestack, and due to the inward and upward fiow of the same an induceddraft is effected which augmente the effect of the forced steam draft inordinary use.

lVhile I have shoitr \nt l. neem to be the preferable forinof myinvention lt do not wish to be limited thereto as there might be.various changes made in the details of construction and arrangement oflparts described without departingr from the spirit of rmy invention, andhence l desire to avail myself of such changes and modifications asfairly fall Vwithin the spirit andl scope of the appended claims. i

Having described my invention `what I claim as new and desire to secureby Letsaid mechanism and said stack being provided with cold airopenings beiif/fth, said mechanism, substantially as described.`

2. .In a spark arrester, a stack and an annular pocket formed around thetop thereof, g5

a'ylange extending inwardly from. theexal te'rior wall of sa1d\pocket,an inverted coneshapcd wlre gauzeanember adapted to rotate se y on anaxis coincident with theaxis of said y staelg'and a series of propellerblades arf, ranged on the exterior surface of sald `rotatable member andadapted to induce an upward flow of gas thrpugh saicistack, the topwedgeof -the peripheryoffs' d ftnember" being adjacent and above thep'laiieof the interiorl wall of said pocket so thatsoot and einders willbe deflected and deposited in the latter by centrifugal force and thedeflecting action of said member, substantially as described. 4 y

3. ln a spark arrester, a. stack, a radially -diposed power shaftmounted in the top cold air openings inthe `Walle of said tack, 10thereof, an axially arranged drivenshaft substantially as described.having beveled gear connection with said In testimony whereof I havesigned my power shaft, an inverted cone-shapedr -wlre name to thisspecification in the presence of 5 gauze member the apex of which issecured two subscribing Witnesses.

to said driven shaft vand adapted to rotate 1 i CHARLES A. RUSH.therewith, propeller blades'secured to the Witnesses: 4

exterior of said member, an annular pocket W. C. SMITH,

formed around the top of said stack, and ARTHUR A. OLsoN.

